Spin-induced optical conductivity in the spin-liquid candidate herbertsmithite.
Publication
, Journal Article
Pilon, DV; Lui, CH; Han, T-H; Shrekenhamer, D; Frenzel, AJ; Padilla, WJ; Lee, YS; Gedik, N
Published in: Physical review letters
September 2013
We report a direct measurement of the low-frequency optical conductivity of large-area single-crystal herbertsmithite, a promising spin-liquid candidate material, by means of terahertz time-domain spectroscopy. In the spectral range below 1.4 THz, we observe a contribution to the real part of the in-plane conductivity σ(ab)(ω) from the spin degree of freedom. This spin-induced conductivity exhibits a power-law dependence on frequency σ(ab)(ω) ~ ω(β) with β ≈ 1.4. Our observation is consistent with the theoretically predicted low-frequency conductivity arising from an emergent gauge field of a gapless U(1) Dirac spin liquid.
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Published In
Physical review letters
DOI
EISSN
1079-7114
ISSN
0031-9007
Publication Date
September 2013
Volume
111
Issue
12
Start / End Page
127401
Related Subject Headings
- General Physics
- 51 Physical sciences
- 49 Mathematical sciences
- 40 Engineering
- 09 Engineering
- 02 Physical Sciences
- 01 Mathematical Sciences
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Pilon, D. V., Lui, C. H., Han, T.-H., Shrekenhamer, D., Frenzel, A. J., Padilla, W. J., … Gedik, N. (2013). Spin-induced optical conductivity in the spin-liquid candidate herbertsmithite. Physical Review Letters, 111(12), 127401. https://doi.org/10.1103/physrevlett.111.127401
Pilon, D. V., C. H. Lui, T. -. H. Han, D. Shrekenhamer, A. J. Frenzel, W. J. Padilla, Y. S. Lee, and N. Gedik. “Spin-induced optical conductivity in the spin-liquid candidate herbertsmithite.” Physical Review Letters 111, no. 12 (September 2013): 127401. https://doi.org/10.1103/physrevlett.111.127401.
Pilon DV, Lui CH, Han T-H, Shrekenhamer D, Frenzel AJ, Padilla WJ, et al. Spin-induced optical conductivity in the spin-liquid candidate herbertsmithite. Physical review letters. 2013 Sep;111(12):127401.
Pilon, D. V., et al. “Spin-induced optical conductivity in the spin-liquid candidate herbertsmithite.” Physical Review Letters, vol. 111, no. 12, Sept. 2013, p. 127401. Epmc, doi:10.1103/physrevlett.111.127401.
Pilon DV, Lui CH, Han T-H, Shrekenhamer D, Frenzel AJ, Padilla WJ, Lee YS, Gedik N. Spin-induced optical conductivity in the spin-liquid candidate herbertsmithite. Physical review letters. 2013 Sep;111(12):127401.
Published In
Physical review letters
DOI
EISSN
1079-7114
ISSN
0031-9007
Publication Date
September 2013
Volume
111
Issue
12
Start / End Page
127401
Related Subject Headings
- General Physics
- 51 Physical sciences
- 49 Mathematical sciences
- 40 Engineering
- 09 Engineering
- 02 Physical Sciences
- 01 Mathematical Sciences